Improvement in fastening the covers of ink-wells



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PATENT OFFICE.

OF CHICAGO, ILLINOIS.

IMPROVEMENT lN FASTENING THE COVERS OF INK-WELLS.

Specification forming part of Letters Patent No. 411,753, dated October18, 1864.

T0 all whom it ntf/,y concern:

Be it known that I, HENRY M. SHERwooD, of Chicago, in the county of Cookand State of Illinois, have invented an Improved Means of Fastening onthe Covers of Ink-Wells; and I do hereby declare that the following is afull and. exact description thereof, reference being had to theaccompanying drawings, making part of this specification.

Figure I is a plan ot` an inkwell provided with my improvement, thecover being removed; Fig. 2, a central vertical section of the same in aplane indicated by the line x, Fig. l 5 Fig. 3, a central verticalsection thereof in aplane indicated by the line y y, Fig. 1; Fig. 4, anunder side view of the cover arranged for the improved fastening; Fig. aside view of the same in thedirection indicated by the arrow w, Fig. 4;Fig. 6, aside view thereof, looking in the direction indicated by thearrow z, Fig. 4.

Like letters designate corresponding parts in all ofthe figures.

The well A, in which the glass ink-cup B rests, is provided at the topwith a flange, a, projecting both outward and upward, sub stantially asshown in the drawings. The

' vertically-projecting part is cut away or omitted in two oppositeparts of the periphery, as seen in Fig. 1, and in these open spaces thecountersunk screw-holes c c, whereby the well is attached to the desk ortable, are situated. In the inner periphery of the remaining portions ofthis. vertical part or rim ofthe flange is turned a groove or grooves, bb, of riglit angled or equivalent form. Between these rims and a raisedcentral lip around the glass i nk-cup, respectively on opposite sides,are inclined planes d d, ascending very slightly from left to right. Thecover C has a raised portion on its upper side, surrounding a centralcavity, i, which shuts over the ink-cup, but it is nearly cnt away ontwo sides, making it oblong, as indicated in Fig. 4. The two oppositeextended portions have their outer edges concentric with the coveritself, and terminate in projections f f, which will loosely fit intothe grooves b I) of the wellflange. These ends are only wide enough tobe admitted into the opposite open spaces in the vertical rim of thewell-harige, whereby the cover is brought close down upon the well farenough to allow the said projections ffto enter the said grooves b b.

Between the projections f f and the central cavity, li, are inclinedplanes g g, rising from left to right when the cover is inverted, but ofcourse in the opposite direction when the cover is in position upon thewell. These inclined planes correspond with the others, l d, on theink-well, so that by turning the cover round tothe right by a key,inserted in the pen-aperture It, (which is made oblong, or of othersuitable shape for the purpose,) the opposite inclined planes meet andgradually press the cover upward, binding the' projections f f againstthe upper edges of the grooves b b securely.

This method of fastening aifords the advantages of cheap construction,unusual strength, and convenience, and obviates the liability of thecovers becoming pressed down on the glass inlr-cup B, which might bebroken thereby.

What I claim as my invention, and .desire to secure by Letters Patent,is-

Fastening on the covers of ink-wells by means ofinclined planes g g onthe under surface thereof, Aacting upon corresponding inclined planes onthe upper surface ot the well itself, in combination with the planeprojections f f on the cover, and the corresponding grooves, b b, in therim of the well, receiving the saine, substantially as and for thepurposes herein set forth.

HENRY M. SHERVOOD.

Witnesses:

OWEN CUNNiNenMr, J. W. MERRIAM.

